The case is about DoggyPhone's patent infringement lawsuit against Tomofun. The lower court granted summary judgment to Tomofun, finding its "Furbo" device did not infringe DoggyPhone's patent for a remote pet communication system. The appellate court affirmed, focusing on the key claim limitation requiring transmission initiation in response to pet input. The court held that the Furbo's user-initiated transmission, triggered by a notification, did not satisfy this limitation, thus supporting the non-infringement ruling. The court did not need to address the other two grounds for summary judgment.